WO2024027589A1

WO2024027589A1 - Method for determining synchronization source of wake-up signal, terminal and network-side device

Info

Publication number: WO2024027589A1
Application number: PCT/CN2023/109809
Authority: WO
Inventors: 黎建辉
Original assignee: 维沃移动通信有限公司
Priority date: 2022-08-03
Filing date: 2023-07-28
Publication date: 2024-02-08
Also published as: CN117560749A

Abstract

The present application belongs to the field of wireless communications. Disclosed are a method for determining a synchronization source of a wake-up signal, a terminal and a network-side device. The method for determining a synchronization source of a wake-up signal of the embodiments of the present application comprises: a terminal receiving first WUS configuration information sent by a network-side device; and, according to the first WUS configuration information, the terminal acquiring a first synchronization source of a wake-up signal.

Description

Method for determining synchronization source of wake-up signal, terminal and network side equipment

cross reference

This application requires the priority of a Chinese patent application submitted to the China Patent Office on August 3, 2022, with application number 202210929228.3 and titled "Method for determining synchronization source of wake-up signal, terminal and network side equipment". All of the application The contents are incorporated into this application by reference.

Technical field

The present application belongs to the field of wireless communication technology, and specifically relates to a method for determining a synchronization source of a wake-up signal, a terminal and a network side device.

Background technique

In the New Radio (NR) system, in order to further improve the power saving performance of the User Equipment (UE), the Wake Up Signal (Wake Up Signal) based on the Physical Downlink Control Channel (PDCCH) is introduced , WUS). The function of WUS is to inform the UE whether it needs to monitor the PDCCH during the duration (onDuration) of a specific discontinuous reception (Discontinuous Reception, DRX). Based on this indication, the UE decides whether to start the onDuration timer in the next DRX cycle and whether to monitor the PDCCH. When there is no data, the UE does not need to listen to the PDCCH during the onDuration period, which is equivalent to the UE being in a sleep state during the entire DRX long cycle, thereby further saving power.

Network-side equipment (eg, base stations) can enter certain energy-saving modes based on energy-saving purposes. For example, part or all of the uplink transmission and/or downlink transmission of the base station may be turned off, and the base station may be allowed to continuously monitor wake-up signals (WUS) from terminal UEs or other devices. When the base station in the energy-saving mode receives the wake-up signal, it can switch to other base station working states, for example, the base station is fully turned on, or switched to a shallow energy-saving working mode.

In the existing technology, the wake-up signal is sent to the UE by the base station (ie, downlink WUS, DL WUS). Since the base station itself is also the synchronization source of the cell where the UE resides, the synchronization source of the DL WUS must be the same as the UE cell synchronization source. integrated. However, for the WUS (ie, uplink WUS, UL WUS) sent by the UE to the base station, depending on the possible usage scenarios of the UL WUS, the receiving object of the UL WUS may be the serving cell, a targeted energy-saving cell, or any energy-saving cell. Since different cells are not necessarily synchronized, how does the UE determine the synchronization source of UL WUS? Technical issues currently need to be resolved.

Contents of the invention

Embodiments of the present application provide a method, a terminal, and a network side device for determining a synchronization source of a wake-up signal, which can solve the problem of how the UE determines the synchronization source for sending WUS.

In a first aspect, a method for determining a synchronization source of a wake-up signal is provided, including: a terminal receiving first WUS configuration information sent by a network side device; and the terminal obtaining a first WUS configuration information of a wake-up signal based on the first WUS configuration information. Sync source.

In a second aspect, a device for determining a synchronization source of a wake-up signal is provided, including: a receiving module configured to receive the first wake-up signal WUS configuration information sent by a network side device; and a first determining module configured to determine the synchronization source of a wake-up signal according to the first WUS configuration information determines the synchronization source of the uplink wake-up signal as the first synchronization source.

In a third aspect, a method for configuring a wake-up signal is provided, including: the network side device obtains the first WUS configuration information of the terminal, wherein the first WUS configuration information is used to determine the synchronization source for the terminal to send the uplink wake-up signal; The network side device sends the first WUS configuration information to the terminal.

In a fourth aspect, a device for configuring a wake-up signal is provided, including: a second acquisition module for acquiring the first WUS configuration information of the terminal, wherein the first WUS configuration information is used to determine whether the terminal sends an uplink wake-up signal. Synchronization source; a second sending module, configured to send the first WUS configuration information to the terminal.

In a fifth aspect, a terminal is provided. The terminal includes a processor and a memory. The memory stores programs or instructions that can be run on the processor. When the program or instructions are executed by the processor, the following implementations are implemented: The steps of the method described in one aspect.

A sixth aspect provides a terminal, including a processor and a communication interface, wherein the processor is used to implement the steps of the method described in the first aspect, and the communication interface is used to communicate with an external device.

In a seventh aspect, a network side device is provided. The network side device includes a processor and a memory. The memory stores programs or instructions that can be run on the processor. The program or instructions are executed by the processor. When implementing the steps of the method described in the third aspect.

In an eighth aspect, a network side device is provided, including a processor and a communication interface, wherein the processor is used to implement the steps of the method described in the third aspect, and the communication interface is used to communicate with an external device.

A ninth aspect provides a system for determining a synchronization source of a wake-up signal, including: a terminal and a network side device. The terminal can be used to perform the steps of the method described in the first aspect, and the network side device can be used to perform The steps of the method as described in the third aspect.

In a tenth aspect, a readable storage medium is provided. Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method are implemented as described in the first aspect. The steps of the method described in the third aspect.

In an eleventh aspect, a chip is provided. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the method described in the first aspect. The steps of a method, or steps of implementing a method as described in the third aspect.

In a twelfth aspect, a computer program/program product is provided, the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement as described in the first aspect The steps of the method, or the steps of implementing the method as described in the third aspect.

In this embodiment of the present application, the terminal receives the first WUS configuration information sent by the network side device, and determines the synchronization source of the uplink WUS as the first synchronization source according to the first WUS configuration information, so that when WUS needs to be sent, it can determine Send the synchronization source of WUS to realize the sending of uplink WUS.

Description of the drawings

Figure 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable;

Figure 2 shows a schematic flowchart of a method for determining a synchronization source of a wake-up signal in an embodiment of the present application;

Figure 3 shows another schematic flowchart of a method for determining a synchronization source of a wake-up signal in an embodiment of the present application;

Figure 4 shows a schematic flow chart of a method for configuring a wake-up signal in an embodiment of the present application;

Figure 5 shows a schematic structural diagram of a device for determining a synchronization source of a wake-up signal in an embodiment of the present application;

Figure 6 shows another structural schematic diagram of a device for determining a synchronization source of a wake-up signal in an embodiment of the present application;

Figure 7 shows a schematic structural diagram of a wake-up signal configuring device in an embodiment of the present application;

Figure 8 shows a schematic structural diagram of a communication device provided by an embodiment of the present application;

Figure 9 shows a schematic diagram of the hardware structure of a terminal provided by an embodiment of the present application;

Figure 10 shows a schematic hardware structure diagram of a network-side device provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art fall within the scope of protection of this application.

The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first" and "second" are distinguished objects It is usually one type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the related objects are in an "or" relationship.

It is worth pointing out that the technology described in the embodiments of this application is not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced, LTE-A) systems, and can also be used in other wireless communication systems, such as code Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access, OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of this application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these techniques can also be applied to applications other than NR system applications, such as ^6th Generation , 6G) communication system.

Figure 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a palmtop computer, a netbook, or a super mobile personal computer. (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), augmented reality (AR)/virtual reality (VR) equipment, robots, wearable devices (Wearable Device) , Vehicle User Equipment (VUE), Pedestrian User Equipment (PUE), smart home (home equipment with wireless communication functions, such as refrigerators, TVs, washing machines or furniture, etc.), game consoles, personal computers (personal computer, PC), teller machine or self-service machine and other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets) bracelets, smart anklets, etc.), smart wristbands, smart clothing, etc. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network side device 12 may include an access network device and/or a core network device, where the access network device 12 may also be called a radio access network device, a radio access network (Radio Access Network, RAN), or a radio access network. function or radio access network unit. Access network equipment 12 may include base stations, WLAN Access point or WiFi node, etc. The base station may be called Node B, evolved Node B (eNB), access point, Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home B-Node, Home Evolved B-Node, Transmitting Receiving Point (TRP) or some other suitable one in the field Terminology, as long as the same technical effect is achieved, the base station is not limited to specific technical terms. It should be noted that in the embodiment of this application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

The solution for determining the synchronization source of the wake-up signal provided by the embodiments of the present application will be described in detail below through some embodiments and application scenarios with reference to the accompanying drawings.

Figure 2 shows a schematic flowchart of a method for determining a synchronization source of a wake-up signal in an embodiment of the present application. The method 200 can be executed by a terminal. In other words, the method may be performed by software or hardware installed on the terminal. As shown in Figure 2, the method may include the following steps.

S210: The terminal receives the first WUS configuration information sent by the network side device.

In this embodiment of the present application, optionally, the WUS configuration information includes at least one of the following:

(1) Synchronization source information, used to indicate at least one synchronization source of WUS.

In this embodiment of the present application, the WUS synchronization source may be a device (type) such as a base station, a satellite, or a terminal, or a logical entity such as a serving cell, an energy-saving cell, an associated cell of a serving cell or an energy-saving cell, or an NTN cell.

In this embodiment of the present application, the synchronization source information may include specific configuration information of the synchronization source, such as identification information, time-frequency domain information, etc.

(2) Priority information, used to indicate the priority of each synchronization source.

Through this priority information, the terminal can determine the priority of each synchronization source.

(3) First duration information, used to indicate the out-of-synchronization determination duration of each synchronization source.

That is, the out-of-sync judgment duration T _out-of-sync of the synchronization source. For example, the UE receives a synchronization signal from a certain synchronization source at time T0. If the UE does not receive a synchronization signal from the synchronization source within time [T0, T1] thereafter, the UE considers that it is out of synchronization with the synchronization source. The out-of-synchronization decision duration of the synchronization source can be defined as T _out-of-sync =T1-T0.

(4) Valid time information, used to indicate the valid time of each synchronization source.

The valid time T _sync-valid of the synchronization source indicates the time when the synchronization source is a valid synchronization source when the UE uses a certain synchronization source as the synchronization source for the UE to send WUS. During this time, the UE can still use the synchronization source as the synchronization source. Send WUS when calibrating (i.e. when calibrating).

(5) Time difference information, used to indicate the calibration time difference between two synchronization sources in the at least one synchronization source.

The time difference information can indicate the time difference between the two WUS synchronization sources. For example, if the time difference between the first WUS synchronization source and the second WUS synchronization source is Toffset, the UE can obtain the timing of the second WUS synchronization source by synchronizing with the first WUS synchronization source, and vice versa.

In the application embodiment, the first WUS configuration information may be configured by the network side device for the terminal. For example, the terminal's serving cell sends the first WUS configuration information to the terminal, or the first WUS configuration information may also include the cell of the synchronization source. in configuration information. For example, cell 1 is the serving cell of the UE, and cell 1 configures the UE with cell 2 as a synchronization source (that is, the first WUS configuration information sent by the cell to the UE indicates that cell 2 is an optional synchronization source), or cell 2 The cell configuration information (CellConfig) contains the first WUS configuration information (WUS Config).

S220: The terminal determines that the synchronization source of the uplink wake-up signal is the first synchronization source according to the first WUS configuration information.

In this embodiment of the present application, the terminal may determine that the synchronization source of the uplink WUS is the first synchronization source according to the first WUS configuration information. For example, when the synchronization source information in the first WUS configuration information indicates only one synchronization source of WUS, the terminal determines that the synchronization source is the synchronization source of WUS (ie, the first synchronization source). In the case where the synchronization source information in the first WUS configuration information indicates multiple synchronization sources of WUS, the terminal can obtain the first synchronization source of WUS in combination with the priority information in the first WUS configuration information, for example, select multiple synchronization sources. The synchronization source with the highest priority among the synchronization sources is used as the first synchronization source. For another example, the UE selects a synchronization source with the highest priority among multiple synchronization sources that can detect synchronization signals as the first synchronization source.

Through the technical solution provided by the embodiment of this application, the terminal receives the first WUS configuration information sent by the network side device, and determines the synchronization source of the uplink WUS as the first synchronization source according to the first WUS configuration information, so that it can send WUS when needed. At this time, the synchronization source for sending the uplink WUS is determined, thereby realizing the sending of the uplink WUS and saving the power consumption of the network side equipment.

In a possible implementation, as shown in Figure 3, the method may further include: S230, the terminal performs time alignment according to the time of the first synchronization source. For example, the terminal can obtain the calibration time by synchronizing with the first synchronization source, and then perform time alignment with the time of the first synchronization source.

In a possible implementation, the method may further include: the terminal may send WUS according to the first WUS configuration information corresponding to the first synchronization source. For example, after performing time alignment through S230, the terminal may send WUS according to the first WUS configuration information corresponding to the first synchronization source. The first WUS configuration information is sent to WUS.

For example, the first WUS configuration information may include a WUS configuration to indicate a WUS configuration corresponding to one or more synchronization sources. The WUS configuration includes: WUS time-frequency domain information, WUS period, and WUS signal. Characteristics, the maximum number of WUS sending times, and the effective area of WUS.

Through WUS configuration, the UE can determine the relevant information for sending WUS. For example, if the terminal determines to use the first synchronization source as the synchronization source for sending WUS, then when sending WUS, it can use the first WUS configuration information corresponding to the first synchronization source. WUS is sent according to the WUS configuration. For example, the time-frequency domain information in the WUS configuration indicates that WUS is sent at a time-frequency domain location, or WUS is sent periodically according to the WUS period in the WUS configuration.

In one possible implementation, the terminal performs time alignment according to the time of the first synchronization source, including: within the valid time of the first synchronization source, the terminal performs time alignment according to the time of the first synchronization source. Time alignment. Through this possible implementation, time alignment is performed according to the time of the first synchronization source within the valid time of the first synchronization source, thereby ensuring the accuracy of time synchronization between the terminal and the network side.

In a possible implementation, the terminal can determine the validity time of the first synchronization source through the following steps:

Step 1: The terminal receives the synchronization signal of the first synchronization source at the first time T0;

Step 2: If the terminal does not receive the synchronization signal from the first synchronization source after the first time T0 until the second time T1, the terminal determines to prohibit sending the uplink wake-up signal after the third time T2. , and determine the valid time of the first synchronization source as: T2-T1; or, T2-T0.

For example, the UE receives a synchronization signal from a certain synchronization source at time T0. If the UE does not receive a synchronization signal from the synchronization source within time [T0, T1] thereafter, the UE considers that it is out of synchronization with the synchronization source. After that, the UE can still send WUS within the [T1, T2] time, but it is considered that it is prohibited to send WUS after the T2 time. The definition of the valid time may be:
T _sync-valid =T2-T1; or
T _sync-valid =T2-T0.

It should be noted that T2 can be equal to T1. In this case, the valid time of the WUS synchronization source is equal to the out-of-synchronization judgment time of the WUS synchronization source.

In another possible implementation, if the UE is in the connected state, the terminal can determine the validity time of the first synchronization source in the following manner: the terminal in the connected state determines that a radio link failure has occurred at the fourth time T3 Failure, RLF), determine that it is prohibited to send the uplink wake-up signal after the fifth time T4, and determine that the valid time of the first synchronization source is T4-T3.

For example, when the connected UE determines that RLF occurs at time T3, the UE can still send WUS within the time [T3, T4]. The WUS synchronization source valid time can be defined as:
T _sync-valid =T4-T3.

Among them, the terminal can confirm that the current serving cell is in the RLF state based on certain reasons, such as:

(1) The wireless link monitoring timer T310 times out and the UE is in a continuous out-of-sync state;

(2) Beam Failure Recovery (BFR) failed;

(3) Random access problem;

(4) The number of Radio Link Control (RLC) retransmissions exceeds;

(5) Listen Before Talk (LBT) failed.

In a possible implementation, the method may further include: the terminal determining that it is out of synchronization with the first synchronization source. Since the terminal may be in a mobile state, after determining that the first synchronization source is the synchronization source of the uplink wake-up signal, the terminal may be out of synchronization with the first synchronization source. The terminal can ensure that it is out of synchronization with the first synchronization source by determining whether it is out of synchronization with the first synchronization source. The obtained WUS sending time is synchronized with the network side.

In a possible implementation, the terminal may determine that it is out of synchronization with the first synchronization source under at least one of the following conditions:

(1) The wireless link monitoring timer T310 of the terminal times out, wherein the terminal is in a connected state, such as a UE in an RRC connected state.

When the UE receives the Nth out-of-sync indication from the physical layer, the UE starts the T310 timer. When the T310 timer times out, the UE determines that RLF occurs with the synchronization source, and the N is a positive integer; in this case, RLF It can be regarded that the UE and the synchronization source are out of synchronization.

(2) The terminal does not receive the synchronization signal sent by the first synchronization source within a predetermined time period, wherein the terminal is in a non-connected state, for example, a UE in an idle state, or a UE in an inactive state.

For example, the UE receives a synchronization signal from a certain synchronization source at time T0. If the UE does not receive a synchronization signal from the synchronization source within time [T0, T1], the UE will

It is determined at time T1 that the WUS synchronization source is out of sync.

In a possible implementation, the method further includes: when it is determined that out-of-synchronization occurs with the first synchronization source, the terminal performs one of the following:

(1) The terminal stops sending WUS. That is, after the terminal determines that it is out of synchronization with the first synchronization source, it immediately stops sending WUS.

(2) The terminal continues to send WUS within the valid time of the first synchronization source; that is, after the terminal determines that it is out of synchronization with the first synchronization source, it does not stop sending WUS immediately, but within the validity period of the first synchronization source. Continue to send WUS within the validity period.

(3) The terminal stops sending WUS after the validity time of the first synchronization source. That is, after determining that the terminal is out of synchronization with the first synchronization source, it does not stop sending WUS immediately, but stops sending WUS after the validity time of the first synchronization source.

In a possible implementation, the method may further include: in the second case, the terminal determines the second synchronization source as the synchronization source of the uplink wake-up signal. That is to say, in the second case, the terminal can change the synchronization source of WUS. For example, after the terminal determines that the first synchronization source is the synchronization source of the uplink wake-up signal according to the first WUS configuration information, in the second case, the terminal changes the synchronization source of the uplink WUS to the second synchronization source.

Optionally, the second situation includes but is not limited to at least one of the following:

(1) The terminal detects a second synchronization source with a higher priority than the first synchronization source.

For example, when the UE detects (synchronization signal of) a higher priority WUS synchronization source, the UE performs timing correction to the higher priority WUS synchronization source.

(2) The terminal determines that it is out of synchronization with the first synchronization source.

For example, when the UE determines that it is out of synchronization with the current WUS synchronization source, the UE can correct the time to a WUS synchronization source with the same or lower priority than the current WUS synchronization source.

For the manner in which the terminal determines that it is out of synchronization with the first synchronization source, please refer to the above related description.

(3) RLF occurs between the terminal and the cell, and the terminal is in a connected state.

For example, when the UE receives the Nth out-of-sync indication from the physical layer, the UE starts the T310 timer. When the T310 timer times out, the UE determines that RLF occurs with the synchronization source, and N is a positive integer; in this case The lower RLF can be considered as the UE and the synchronization source are out of synchronization.

(4) The terminal determines that the first synchronization source is invalid.

For example, the terminal can determine the effective time of the first synchronization source in the above-mentioned manner of determining the effective time of the first synchronization source. The UE can still send WUS within the effective time of the first synchronization source, but cannot send WUS after the effective time. WUS. At this time, the UE should change the WUS synchronization source.

(5) The terminal determines that the distance between the current geographical location and the geographical location of the first synchronization source exceeds the first threshold.

When the UE determines that the distance between its current geographical location and the geographical location of the first synchronization source exceeds a certain threshold, and the UE considers that it has left the effective range of the first synchronization source, the UE considers that the first synchronization source is unavailable and can send a message to the first synchronization source. Other synchronization sources perform time correction.

(6) The terminal determines that the distance between the current geographical location and the reference geographical location of the first synchronization source exceeds the second threshold.

In some cases, the first synchronization source may cover a certain range. For example, the first synchronization source is an energy-saving cell, and the first synchronization source can be positioned by referring to the geographical location. Therefore, in this possible implementation, When the UE determines that the distance between its current geographical location and the reference geographical location of the first synchronization source exceeds a certain threshold, the UE considers that it has left If the UE has currently left the effective range of the first synchronization source, the UE considers that the first synchronization source is unavailable and can perform time correction to other synchronization sources.

When the UE uses the WUS configuration information configured by the network side device for the first synchronization source (for example, the WUS configuration information may include WUS time-frequency domain information, WUS period, WUS signal characteristics, maximum number of WUS transmissions, WUS validity When sending WUS, if the WUS synchronization source changes, for example, from the first WUS synchronization source to the second WUS synchronization source, the UE can change the behavior of sending WUS accordingly. Therefore, in a possible implementation, after the terminal determines that the synchronization source of the uplink wake-up signal is the second synchronization source, the terminal obtains the calibration time for sending the uplink WUS through the second synchronization source, and based on the obtained The calibration time is used to perform time alignment. After that, the method further includes one of the following:

(1) The terminal uses the first WUS configuration information corresponding to the first synchronization source to send WUS.

Optionally, in this possible implementation, the first synchronization source and the second synchronization source belong to the same Global Navigation Satellite System (GNSS) system or the same Public Land Mobile Network (Public Land Mobile Network, PLMN) .

In this possible implementation, optionally, the terminal obtains the calibration time for sending the uplink wake-up signal through the second synchronization source, including: the terminal obtains the calibration time of the first synchronization source through the second synchronization source. Calibration time. That is to say, the UE uses the second synchronization source to obtain the timing of the first synchronization source. For example, using the time offset (time difference) between the first synchronization source and the second synchronization source, the timing of the UE and the first WUS synchronization source can be obtained through the timing of the second WUS synchronization source and the offset. The offset may be configured to the UE by the network side device, for example, may be included in the WUS configuration information.

In a possible implementation, if the terminal fails to obtain the calibration time of the first synchronization source through the second synchronization source, the terminal stops sending WUS.

(2) The terminal sends WUS using the second WUS configuration information corresponding to the second synchronization source.

In this possible implementation, after changing the synchronization source of the WUS to the second synchronization source, the terminal sends the WUS using the second WUS configuration information corresponding to the second synchronization source.

In a possible implementation, if the second WUS configuration information corresponding to the second synchronization source does not exist, the terminal stops sending WUS. For example, the terminal detects the synchronization signal of the second synchronization source. The priority of the second synchronization source is higher than the priority of the first synchronization source. For example, the second synchronization source is an energy-saving cell and the first synchronization source is also an energy-saving cell. The terminal It is determined that the synchronization source of the uplink WUS is updated to the second synchronization source, but when the terminal sends WUS, it does not obtain the second WUS configuration information corresponding to the second synchronization source. For example, the WUS configuration information sent by the network side device does not indicate the second synchronization source. Second synchronization source, or the cell configuration information of the second synchronization source does not contain WUS configuration information, the terminal stops sending Upward WUS.

In a possible implementation of the embodiment of the present application, the method may further include: in a third situation, the terminal starts or restarts a first timer, wherein the first timer is used to calculate the The duration of sending WUS within the validity period of a synchronization source.

Optionally, the third situation includes but is not limited to at least one of the following:

(1) Determine that the conditions for sending WUS are met; that is, after determining that the conditions for sending WUS are met, start or restart the first timer. After determining that the conditions for sending WUS are met, the terminal considers that it starts sending WUS within the valid time of the first synchronization source. Therefore, it starts or restarts the first timer and calculates the duration of sending WUS within the valid time of the first synchronization source.

(2)Send WUS. That is to say, when the terminal sends WUS, the first timer is started or restarted. When sending WUS, the terminal considers that it starts sending WUS within the valid time of the first synchronization source. Therefore, it starts or restarts the first timer and calculates the duration of sending WUS within the valid time of the first synchronization source.

Optionally, the UE sending WUS means that the UE sends WUS for the first time in a WUS behavior. Among them, a WUS behavior can be understood in multiple ways. For example, one way to understand it is that after the UE has available WUS configuration, it determines that the conditions for sending WUS are met, triggers sending of WUS, and subsequently continues to send WUS or stops sending WUS. Another way to understand it is that after the UE has available WUS configuration and determines that the conditions for sending WUS are met, it triggers sending WUS and subsequently stops sending WUS. Subsequently, after the UE re-judges that the conditions for sending WUS are met, it triggers sending of WUS, and subsequently continues to send WUS or stops sending WUS.

(3) The synchronization signal of the available first synchronization source is detected. That is, after determining that the synchronization source of the uplink WUS is the first synchronization source, the terminal starts or restarts the first timer when detecting the synchronization signal sent by the available first synchronization source. After detecting the synchronization signal of the available first synchronization source, the terminal may consider that the valid time of the first synchronization source has begun, and therefore starts or restarts the first timer to start timing.

(4) Determine the synchronization source of the uplink WUS as the second synchronization source. That is, when the terminal determines to change the synchronization source, it starts or restarts the first timer. When the terminal determines to change the synchronization source, since the synchronization source is updated, the terminal starts or restarts the first timer to time the duration for which the terminal sends WUS within the valid time of the second synchronization source.

(5) Determine that it is out of sync with the first synchronization source. That is, when the terminal determines that it is out of synchronization with the first synchronization source, it starts or restarts the first timer. The method of determining the terminal and the first synchronization source can be found in the above related description, and will not be described again here. When the terminal determines that it is out of synchronization with the first synchronization source, it needs to update the synchronization source. Therefore, the terminal starts or restarts the first timer to time the duration for which the terminal sends WUS within the validity time of the updated synchronization source.

(6) Send WUS according to the second WUS configuration information corresponding to the second synchronization source. That is, the terminal determines to replace the same After the synchronization source is synchronized, and when WUS is sent according to the second WUS configuration information corresponding to the replaced second synchronization source, the first timer is started or restarted. The difference between this implementation and (4) is that after the synchronization source is changed, the timing starts when WUS is sent using the second WUS configuration information corresponding to the second synchronization source.

In a possible implementation, the method may further include: in a fourth situation, the terminal stops the first timer.

Optionally, the fourth situation includes at least one of the following:

(1) The synchronization signal of the available first synchronization source is detected; that is, the terminal can stop the first timer when detecting (the synchronization signal of) the available WUS synchronization source. After detecting the synchronization signal of the available first synchronization source, the terminal may also consider that the valid time of the first synchronization source has not started counting, and therefore, stops the first timer.

(2) Determine the synchronization source of the uplink WUS to be the second synchronization source, that is, determine to obtain the calibration time of the WUS through the second synchronization source. For example, time alignment can be performed based on the time of the second synchronization source, or the calibration time can be obtained through the second synchronization source. The calibration time of the first synchronization source is used to perform time alignment with the first synchronization source according to the calibration time.

(3) A reconfiguration message is received, wherein the WUS configuration information in the reconfiguration message does not include the first WUS configuration information. For example, the UE receives an RRC reconfiguration message, and the WUS configuration information in the RRC reconfiguration message does not include the first WUS configuration information.

(4) Read the system message of the serving cell, and the WUS configuration information in the system message does not include the first WUS configuration information.

(5) A campable cell is detected.

(6) A switchable cell is detected.

(7) A cell that meets the cell reselection conditions is detected.

(8) The cell-defining synchronization signal block (cell-defining SSB, CD-SSB) is detected; CD-SSB is defined as the SSB associated with SIB1 (that is, RMSI). SIB1 defines the scheduling information of other SIBs and includes information for initial access of the terminal. The frequency position of CD-SSB must be on the system synchronization grid. Therefore, when CD-SSB is detected, the terminal can stop the first timer.

(9) Leave the effective area of the first WUS configuration information.

(10) The number of times WUS is sent reaches the maximum number of times WUS is sent determined by the first WUS configuration information.

(11) Receive WUS feedback information sent by the energy-saving cell. For example, receiving a HARQ ACK/NACK, a Radio Network Temporary Identifier (RNTI) to identify energy saving, or a physical downlink control channel (Physical downlink control channel) scrambled by the UE's Cell RNTI (Cell RNTI, C-RNTI). , PDCCH), synchronization signal and physical broadcast channel block (synchronization signal and PBCH block, SSB, also Can be called synchronization signal block), etc.

In a possible implementation, the method further includes: when the first timer times out, the terminal stops sending WUS.

Through the technical solutions provided by the embodiments of this application, through the definition of the synchronization source desynchronization of the uplink WUS and the definition of the valid time (and its timer) of the synchronization source of the uplink WUS, the UE can ensure that the UE is within the valid time of the WUS synchronization source (through The way the timer runs) can still send WUS to try to wake up the energy-saving cell. In addition, through the conditions for changing the synchronization source of the uplink WUS and the UE action plan after the change, the UE can know when the synchronization source of the WUS needs to be changed, and the behavior of the UE after the change.

Figure 4 shows a schematic flowchart of a method for configuring a wake-up signal in an embodiment of the present application. The method 400 can be executed by a network-side device. In other words, the method may be executed by software or hardware installed on the network side device. As shown in Figure 4, the method may include the following steps.

S410: The network side device obtains the first WUS configuration information of the terminal, where the first WUS configuration information is used to determine the synchronization source for the terminal to send the uplink wake-up signal.

S420: The network side device sends the first WUS configuration information to the terminal.

In a possible implementation, the first WUS configuration information includes but is not limited to at least one of the following:

(1) Synchronization source information, used to indicate at least one synchronization source;

(2) Priority information, used to indicate the priority of each synchronization source;

(3) First duration information, used to indicate the out-of-synchronization judgment duration of each synchronization source;

(4) Valid time information, used to indicate the valid time of each synchronization source;

The first WUS configuration information in the embodiment of the present application is the same as the first WUS configuration information in method 200. For details, please refer to the description in method 200, which will not be described again here.

Through the above method provided by the embodiments of this application, the network side device can configure the first WUS configuration information for the terminal, so that the terminal can determine the synchronization source of the uplink WUS based on the first WUS configuration information.

For the method for determining the synchronization source of the wake-up signal provided by the embodiment of the present application, the execution subject may be a device for determining the synchronization source of the wake-up signal. In this embodiment of the present application, the apparatus for determining the synchronization source of the wake-up signal performs the method of determining the synchronization source of the wake-up signal as an example to illustrate the apparatus for determining the synchronization source of the wake-up signal provided by the embodiment of the present application.

Figure 5 shows a schematic structural diagram of a device for determining a synchronization source of a wake-up signal provided by an embodiment of the present application. The device can be applied to a terminal. As shown in Figure 5, the device 500 mainly includes: a receiving module 501 and a first determination module. module 502.

In the embodiment of this application, the receiving module 501 is used to receive the first wake-up signal WUS configuration information sent by the network side device; the first determining module 502 is used to determine the synchronization of the uplink wake-up signal according to the first WUS configuration information. The source is the first synchronization source.

In a possible implementation, as shown in Figure 6, the device may further include: a first acquisition module 503, configured to perform time alignment according to the time of the first synchronization source.

In a possible implementation, as shown in Figure 6, the device may further include: a first sending module 504, configured to send WUS according to the first WUS configuration corresponding to the first synchronization source.

In a possible implementation, the first acquisition module 503 performs time alignment according to the time of the first synchronization source through the first synchronization source, including:

Within the valid time of the first synchronization source, time alignment is performed according to the time of the first synchronization source.

In a possible implementation, the first acquisition module 503 determines the validity time of the first synchronization source in one of the following ways:

When the synchronization signal from the first synchronization source is received at the first time T0, and the synchronization signal from the first synchronization source is not received after the first time T0 until the second time T1, it is determined that the synchronization signal from the first synchronization source is received at the third time T0. It is forbidden to send uplink wake-up signals after time T2, and the valid time of the first synchronization source is determined to be: T2-T1; or, T2-T0;

At the fourth time T3, it is determined that a wireless link failure RLF occurs, it is determined that the uplink wake-up signal is prohibited from being sent after the fifth time T4, and the valid time of the first synchronization source is determined to be T4-T3.

In a possible implementation, the first determining module 502 is also configured to determine that out-of-synchronization occurs with the first synchronization source.

In a possible implementation, the first determination module 502 determines that out-of-synchronization occurs with the first synchronization source, including:

In the first case, it is determined that out-of-synchronization occurs with the first synchronization source;

Wherein, the first situation includes at least one of the following:

The wireless link monitoring timer T310 of the terminal times out, wherein the terminal is in the connected state;

The terminal does not receive the synchronization signal sent by the first synchronization source within a predetermined time period, wherein the terminal is in a non-connected state.

In a possible implementation, the first sending module 504 is also configured to perform at least one of the following after determining that out-of-synchronization occurs with the first synchronization source:

Stop sending WUS;

Continue to send WUS within the valid time of the first synchronization source;

Stop sending WUS after the validity time of the first synchronization source.

In a possible implementation, the first determining module 502 is further configured to determine, in the second case, that the synchronization source of the uplink wake-up signal is the second synchronization source.

In a possible implementation, the first acquisition module 503 is also configured to acquire the calibration time for sending the uplink wake-up signal through the second synchronization source, and perform time alignment according to the acquired calibration time; the first The sending module 504 is also configured to do one of the following: sending WUS using the first WUS configuration information corresponding to the first synchronization source; sending WUS using the second WUS configuration information corresponding to the second synchronization source.

In a possible implementation, the first obtaining module 503 obtains the calibration time for sending the uplink wake-up signal through the second synchronization source, including: obtaining the calibration time of the first synchronization source through the second synchronization source.

In a possible implementation, the first sending module 504 is also configured to obtain the first synchronization source when the second WUS configuration information corresponding to the second synchronization source does not exist or through the second synchronization source. If the time calibration fails, stop sending WUS.

In a possible implementation, as shown in Figure 6, the device may also include: an execution module 605, configured to start or restart a first timer in the third situation, wherein the first timer is used to calculate The duration of sending WUS within the valid time of the first synchronization source.

In a possible implementation, the execution module 605 is also configured to stop the first timer in the fourth situation.

In a possible implementation, the first sending module 504 is also configured to stop sending WUS when the first timer times out.

The device for determining the synchronization source of the wake-up signal in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or may be a component in the electronic device, such as an integrated circuit or chip. The electronic device may be a terminal or other devices other than the terminal. For example, terminals may include but are not limited to the types of terminals 11 listed above, and other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., which are not specifically limited in the embodiment of this application.

The device for determining the synchronization source of the wake-up signal provided by the embodiment of the present application can implement each process implemented by the method embodiment of Figures 2 to 3, and achieve the same technical effect. To avoid duplication, the details will not be described here.

Figure 7 shows a schematic structural diagram of a wake-up signal configuration device provided by an embodiment of the present application. This device can be applied to network side equipment. As shown in Figure 7, the device mainly includes: a second acquisition module 701 and a second sending module. Module 702.

In this embodiment of the present application, the second acquisition module 701 is used to acquire the first WUS configuration information of the terminal, where, The first WUS configuration information is used to determine the synchronization source for the terminal to send the uplink wake-up signal; the second sending module 702 is used to send the first WUS configuration information to the terminal.

The wake-up signal configuration device provided by the embodiment of the present application can implement each process implemented by the method embodiment in Figure 4 and achieve the same technical effect. To avoid duplication, it will not be described again here.

Optionally, as shown in Figure 8, this embodiment of the present application also provides a communication device 800, which includes a processor 801 and a memory 802. The memory 802 stores programs or instructions that can be run on the processor 801, for example. , when the communication device 800 is a terminal, when the program or instruction is executed by the processor 801, each step of the method embodiment for determining the synchronization source of the wake-up signal is implemented, and the same technical effect can be achieved. When the communication device 800 is a network-side device, when the program or instruction is executed by the processor 801, the steps of the above wake-up signal configuring method embodiment are implemented, and the same technical effect can be achieved. To avoid duplication, they will not be described again here.

An embodiment of the present application also provides a terminal, including a processor and a communication interface. The processor is used to implement each step of the method embodiment for determining the synchronization source of the wake-up signal. The communication interface is used to communicate with an external device. This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment. Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect. Specifically, FIG. 9 is a schematic diagram of the hardware structure of a terminal that implements an embodiment of the present application.

The terminal 900 includes but is not limited to: a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, a display unit 906, a user input unit 907, an interface unit 908, a memory 909, a processor 910, etc. At least some parts.

Those skilled in the art can understand that the terminal 900 may also include a power supply (such as a battery) that supplies power to various components. The power supply may be logically connected to the processor 910 through a power management system, thereby managing charging, discharging, and power consumption through the power management system. Management and other functions. The terminal structure shown in FIG. 9 does not constitute a limitation on the terminal. The terminal may include more or fewer components than shown in the figure, or may combine certain components, or arrange different components, which will not be described again here.

It should be understood that in the embodiment of the present application, the input unit 904 may include a graphics processing unit (GPU) 9041 and a microphone 9042. The GPU 9041 is used for recording data generated by an image capture device (such as a camera) in the video capture mode or the image capture mode. ) to process the image data of still pictures or videos obtained. The display unit 906 may include a display panel 9061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 907 includes a touch panel 9071 and at least one of other input devices 9072 . Touch panel 9071, also known as touch screen. The touch panel 9071 may include two parts: a touch detection device and a touch controller. Other input devices 9072 may include but are not limited to physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described again here.

In this embodiment of the present application, after receiving downlink data from the network side device, the radio frequency unit 901 can transmit it to the processor 910 for processing; in addition, the radio frequency unit 901 can send uplink data to the network side device. Generally, the radio frequency unit 901 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

Memory 909 may be used to store software programs or instructions as well as various data. The memory 909 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, Image playback function, etc.) etc. Additionally, memory 909 may include volatile memory or nonvolatile memory, or memory 909 may include both volatile and nonvolatile memory. Among them, non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically removable memory. Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory can be random access memory (Random Access Memory, RAM), static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) and Direct Rambus RAM (DRRAM). Memory 909 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.

The processor 910 may include one or more processing units; optionally, the processor 910 integrates an application processor and a modem processor, where the application processor mainly handles operations related to the operating system, user interface, application programs, etc., Modem processors mainly process wireless communication signals, such as baseband processors. It can be understood that the above modem processor may not be integrated into the processor 910.

Among them, the radio frequency unit 901 is used to receive the first wake-up signal WUS configuration information sent by the network side device;

The processor 910 is configured to determine the synchronization source of the uplink wake-up signal as the first synchronization source according to the first WUS configuration information.

The terminal provided by the embodiment of the present application can determine the synchronization source of the uplink WUS as the first synchronization source according to the first WUS configuration information received from the network side device.

Embodiments of the present application also provide a network-side device, including a processor and a communication interface. The processor is used to implement each step of the above wake-up signal configuring method embodiment, and the communication interface is used to communicate with an external device. This network-side device embodiment corresponds to the above-mentioned network-side device method embodiment. Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this network-side device embodiment, and can achieve the same technical effect.

Specifically, the embodiment of the present application also provides a network side device. As shown in Figure 10, the network side device 1000 includes: an antenna 1001, a radio frequency device 1002, a baseband device 1003, a processor 1004 and a memory 1005. Antenna 1001 is connected to radio frequency device 1002. In the uplink direction, the radio frequency device 1002 receives information through the antenna 1001 and sends the received information to the baseband device 1003 for processing. In the downlink direction, the baseband device 1003 processes the information to be sent and sends it to the radio frequency device 1002. The radio frequency device 1002 processes the received information and sends it out through the antenna 1001.

The method performed by the network side device in the above embodiment can be implemented in the baseband device 1003, which includes a baseband processor.

The baseband device 1003 may include, for example, at least one baseband board on which multiple chips are disposed, as shown in FIG. Program to perform the network device operations shown in the above method embodiments.

The network side device may also include a network interface 1006, which is, for example, a common public radio interface (CPRI).

Specifically, the network side device 1000 in this embodiment of the present invention also includes: instructions or programs stored in the memory 1005 and executable on the processor 1004. The processor 1004 calls the instructions or programs in the memory 1005 to execute each of the steps shown in Figure 7 The method of module execution and achieving the same technical effect will not be described in detail here to avoid duplication.

Embodiments of the present application also provide a readable storage medium on which a program or instructions are stored. When the program or instructions are executed by a processor, each process of the method embodiment for determining the synchronization source of the wake-up signal is implemented. , or implement each process of the above wake-up signal configuring method embodiment, and can achieve the same technical effect. To avoid duplication, details will not be described here.

Wherein, the processor is the processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage media, such as computer read-only memory ROM, random access memory RAM, magnetic disk or optical disk, etc.

An embodiment of the present application further provides a chip. The chip includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to realize the synchronization source of the above wake-up signal. Each process of the determination method embodiment, or the various processes of the above-mentioned wake-up signal configuration method embodiment, can achieve the same technical effect, and will not be described again here to avoid duplication.

It should be understood that the chips mentioned in the embodiments of this application may also be called system-on-chip, system-on-a-chip, system-on-chip or system-on-chip, etc.

The embodiment of the present application further provides a computer program/program product, the computer program/program product is stored In the storage medium, the computer program/program product is executed by at least one processor to implement the various processes of the above-mentioned method embodiment of determining the synchronization source of the wake-up signal, or to implement the various processes of the above-mentioned configuration method embodiment of the wake-up signal, and can achieve the same technical effect, so to avoid repetition, we will not repeat them here.

Embodiments of the present application also provide a system for determining the synchronization source of a wake-up signal, including: a terminal and a network side device. The terminal can be used to perform the steps of the method for determining the synchronization source of a wake-up signal as described above. The network The side device may be configured to perform the steps of the method for configuring the wake-up signal as described above.

It should be noted that, in this document, the terms "comprising", "comprises" or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article or device that includes a series of elements not only includes those elements, It also includes other elements not expressly listed or inherent in the process, method, article or apparatus. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article or apparatus that includes that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, but may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved. Functions may be performed, for example, the methods described may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better. implementation. Based on this understanding, the technical solution of the present application can be embodied in the form of a computer software product that is essentially or contributes to the existing technology. The computer software product is stored in a storage medium (such as ROM/RAM, disk , CD), including several instructions to cause a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in various embodiments of this application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Inspired by this application, many forms can be made without departing from the purpose of this application and the scope protected by the claims, all of which fall within the protection of this application.

Claims

A method for determining the synchronization source of a wake-up signal, including:

The terminal receives the first wake-up signal WUS configuration information sent by the network side device;

The terminal determines the first synchronization source as the synchronization source of the uplink wake-up signal according to the first WUS configuration information.
The method of claim 1, further comprising:

The terminal performs time alignment according to the time of the first synchronization source.
The method according to claim 1 or 2, wherein the first WUS configuration information includes at least one of the following:

Synchronization source information, used to indicate at least one synchronization source of WUS;

Priority information, used to indicate the priority of each synchronization source;

First duration information, used to indicate the out-of-synchronization judgment duration of each synchronization source;

Valid time information, used to indicate the valid time of each synchronization source;

Time difference information is used to indicate the calibration time difference between two synchronization sources in the at least one synchronization source.
The method according to claim 2, wherein the terminal performs time alignment according to the time of the first synchronization source, including:

The terminal performs time alignment according to the time of the first synchronization source within the valid time of the first synchronization source.
The method according to claim 4, wherein the terminal determines the validity time of the first synchronization source in one of the following ways:

The terminal receives the synchronization signal from the first synchronization source at the first time T0. After the first time T0, until the second time T1, the terminal does not receive the synchronization signal from the first synchronization source. In this case, the terminal determines that it is prohibited to send the uplink wake-up signal after the third time T2, and determines that the effective time of the first synchronization source is: T2-T1; or, T2-T0;

The terminal in the connected state determines that a wireless link failure RLF occurs at the fourth time T3, determines that it is prohibited to send uplink wake-up signals after the fifth time T4, and determines that the valid time of the first synchronization source is T4-T3.
The method of claim 5, wherein the third time T2 is equal to the second time T1.
The method according to any one of claims 1 to 3, wherein the method further includes:

The terminal determines that it is out of synchronization with the first synchronization source.
The method according to claim 7, wherein the terminal determines that the terminal is out of synchronization with the first synchronization source, include:

In the first case, the terminal determines that it is out of synchronization with the first synchronization source;

Wherein, the first situation includes at least one of the following:

The wireless link monitoring timer T310 of the terminal times out, wherein the terminal is in a connected state;

The terminal does not receive the synchronization signal sent by the first synchronization source within a predetermined time period, wherein the terminal is in a non-connected state.
The method of claim 7, further comprising:

When it is determined that out-of-synchronization occurs with the first synchronization source, the terminal performs one of the following:

The terminal stops sending WUS;

The terminal continues to send WUS within the valid time of the first synchronization source;

The terminal stops sending WUS after the validity time of the first synchronization source.
The method according to any one of claims 1 to 3, wherein the method further includes:

In the second case, the terminal determines that the synchronization source of the uplink wake-up signal is the second synchronization source.
The method of claim 10, wherein the second situation includes at least one of the following:

The terminal detects a second synchronization source with a higher priority than the first synchronization source;

The terminal determines that it is out of synchronization with the first synchronization source;

A radio link failure (RLF) occurs between the terminal and the cell, where the terminal is in a connected state;

The terminal determines that the first synchronization source is invalid;

The terminal determines that the distance between the current geographical location and the geographical location of the first synchronization source exceeds a first threshold;

The terminal determines that the distance between the current geographical location and the reference geographical location of the first synchronization source exceeds a second threshold.
The method of claim 11, wherein the method further includes:

The terminal obtains the calibration time for sending the uplink wake-up signal through the second synchronization source, and performs time alignment according to the obtained calibration time;

The terminal uses the first WUS configuration information corresponding to the first synchronization source to send WUS, or uses the second WUS configuration information corresponding to the second synchronization source to send WUS.
The method according to claim 12, wherein when the terminal uses the first WUS configuration information corresponding to the first synchronization source to send WUS, the terminal obtains and sends an uplink wake-up signal through the second synchronization source. calibration time, including:

The terminal obtains the calibration time of the first synchronization source through the second synchronization source.
The method of claim 13, wherein the method further includes:

If the second WUS configuration information corresponding to the second synchronization source does not exist, or the terminal fails to obtain the calibration time of the first synchronization source through the second synchronization source, the terminal stops sending WUS.
The method of claim 1, further comprising:

The terminal sends WUS according to the first WUS configuration information corresponding to the first synchronization source, wherein the first WUS configuration information also includes at least one of the following: time-frequency domain information of WUS, period of WUS, and signal of WUS Characteristics, the maximum number of WUS sending times, and the effective area of WUS.
The method of claim 15, wherein the method further includes:

In the third case, the terminal starts or restarts a first timer, where the first timer is used to calculate the duration of sending WUS within the valid time of the first synchronization source.
The method of claim 16, wherein the third situation includes at least one of the following:

Confirm that the conditions for sending WUS are met;

Send WUS;

detecting the synchronization signal of the available first synchronization source;

Determine the synchronization source of the uplink WUS as the second synchronization source;

Determined to be out of sync with the first synchronization source;

Send WUS according to the second WUS configuration corresponding to the second synchronization source.
The method of claim 16, wherein the method further includes:

In the fourth case, the terminal stops the first timer.
The method of claim 18, wherein the fourth situation includes at least one of the following:

detecting the synchronization signal of the available first synchronization source;

Determine the synchronization source of the uplink WUS as the second synchronization source;

Receive a reconfiguration message, wherein the WUS configuration information in the reconfiguration message does not include the first WUS configuration information;

Read the system message of the serving cell, and the WUS configuration information in the system message does not include the first WUS configuration information;

A campable cell is detected;

Switchable cell detected;

A cell that meets the cell reselection conditions is detected;

Cell definition synchronization signal block CD-SSB is detected;

Leave the effective area of the first WUS configuration information;

The number of times WUS is sent reaches the maximum number of times WUS is sent determined by the first WUS configuration information;

Receive WUS feedback information sent by the energy-saving cell.
The method of claim 16, wherein the method further includes:

When the first timer times out, the terminal stops sending WUS.
A method for configuring a wake-up signal, including:

The network side device obtains the first WUS configuration information of the terminal, where the first WUS configuration information is used to determine the synchronization source for the terminal to send the uplink wake-up signal;

The network side device sends the first WUS configuration information to the terminal.
The method according to claim 21, wherein the first WUS configuration information includes at least one of the following:

Synchronization source information, used to indicate at least one synchronization source;

Priority information, used to indicate the priority of each synchronization source;

First duration information, used to indicate the out-of-synchronization judgment duration of each synchronization source;

Valid time information, used to indicate the valid time of each synchronization source;

Time difference information is used to indicate the calibration time difference between two synchronization sources in the at least one synchronization source.
A device for determining the synchronization source of a wake-up signal, including:

A receiving module configured to receive the first wake-up signal WUS configuration information sent by the network side device;

The first determination module is configured to determine the synchronization source of the uplink wake-up signal as the first synchronization source according to the first WUS configuration information.
The device of claim 23, further comprising:

The first acquisition module is configured to perform time alignment according to the time of the first synchronization source.
The device of claim 24, further comprising:

The first sending module is configured to send WUS according to the first WUS configuration corresponding to the first synchronization source.
The device according to claim 25, wherein the first acquisition module performs time alignment according to the time of the first synchronization source, including:

Within the valid time of the first synchronization source, time alignment is performed according to the time of the first synchronization source.
The device according to claim 26, wherein the first acquisition module determines the validity time of the first synchronization source in one of the following ways:

When the synchronization signal from the first synchronization source is received at the first time T0, and the synchronization signal from the first synchronization source is not received after the first time T0 until the second time T1, it is determined that the synchronization signal from the first synchronization source is received at the third time T0. It is forbidden to send uplink wake-up signals after time T2, and the valid time of the first synchronization source is determined to be: T2-T1; or, T2-T0;

At the fourth time T3, it is determined that a wireless link failure RLF occurs, it is determined that the uplink wake-up signal is prohibited from being sent after the fifth time T4, and the valid time of the first synchronization source is determined to be T4-T3.
The device according to claim 25, wherein the first determining module is further configured to determine that out-of-synchronization occurs with the first synchronization source.
The device according to claim 28, wherein the first determination module determines that out-of-synchronization occurs with the first synchronization source, including:

In the first case, it is determined that out-of-synchronization occurs with the first synchronization source;

Wherein, the first situation includes at least one of the following:

The wireless link monitoring timer T310 of the terminal times out, wherein the terminal is in the connected state;

The terminal does not receive the synchronization signal sent by the first synchronization source within a predetermined time period, wherein the terminal is in a non-connected state.
The device according to claim 28, wherein the first sending module is further configured to perform at least one of the following after determining that out-of-synchronization occurs with the first synchronization source:

Stop sending WUS;

Continue to send WUS within the valid time of the first synchronization source;

Stop sending WUS after the validity time of the first synchronization source.
The device according to claim 25, wherein the first determining module is further configured to determine, in the second situation, that the synchronization source of the uplink wake-up signal is a second synchronization source.
The device of claim 31, wherein:

The first acquisition module is also configured to acquire the calibration time for sending the uplink wake-up signal through the second synchronization source, and perform time alignment according to the acquired calibration time;

The first sending module is also configured to do one of the following: sending WUS using first WUS configuration information corresponding to the first synchronization source; sending WUS using second WUS configuration information corresponding to the second synchronization source.
The device according to claim 32, wherein the first acquisition module acquires the calibration time for sending the uplink wake-up signal through the second synchronization source, including:

The calibration time of the first synchronization source is obtained through the second synchronization source.
The device according to claim 33, wherein the first sending module is further configured to If the second WUS configuration information corresponding to the step source does not exist or fails to obtain the calibration time of the first synchronization source through the second synchronization source, WUS is stopped being sent.
The device of claim 25, further comprising:

An execution module, configured to start or restart a first timer in a third situation, wherein the first timer is used to calculate the duration of sending WUS within the valid time of the first synchronization source.
The apparatus according to claim 35, wherein the execution module is further configured to stop the first timer in a fourth situation.
The device according to claim 35, wherein the first sending module is further configured to stop sending WUS when the first timer times out.
A configuration device for a wake-up signal, including:

The second acquisition module is used to acquire the first WUS configuration information of the terminal, where the first WUS configuration information is used to determine the synchronization source for the terminal to send the uplink wake-up signal;

The second sending module is configured to send the first WUS configuration information to the terminal.
A terminal, including a processor and a memory, the memory stores programs or instructions that can be run on the processor, and when the programs or instructions are executed by the processor, the implementation of any one of claims 1 to 20 is achieved. The steps of the method for determining the synchronization source of the wake-up signal are as follows.
A network-side device, including a processor and a memory. The memory stores programs or instructions that can be run on the processor. When the program or instructions are executed by the processor, any one of claims 21 to 22 is implemented. The steps of the configuration method of the wake-up signal described in the item.
A readable storage medium on which a program or instructions are stored. When the program or instructions are executed by a processor, the method for determining the synchronization source of the wake-up signal according to any one of claims 1 to 20 is implemented. or the steps of implementing the method for configuring a wake-up signal according to any one of claims 21 to 22.